[Rhodes22-list] centerboard attachment

Thu Mar 6 23:45:27 EST 2014

Stan's been putting garden hose in the channels above the pin from what I
have read in a thread about this when I first joined this list.

Works great because it acts as a spring to hold the CB centered in the
trunk, but is ridged enough vertically that it won't allow the pin to lift,
so it stays at the lower limit of the slot.

James

-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of cjlowe at sssnet.com
Sent: Thursday, March 6, 2014 8:59 PM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] centerboard attachment

I have a different take on some of these issues, don't know if I'm right,
probably just a different take. I think I remember someone on the list
saying the pcv pieces slide on each side of the cb pin and act as a
sacrificial bushing , so the stainless steel pivot pin doesn't eat out the
fiberglass in the side and bottom of the grove. Hope I didn't dream that,
because I spent a lot of time making them bushings, mine didn't have them.
  I'm not sure trying to limit the cb's vertical movement is the best idea.
I'm thinking anything you put in the channels has a chance of falling out
and jambing the cb travel. Anything hard screwed in the channels has a good
chance of tearing big holes in the cb trunk and taking out both sides of the
cb cap. If you think fixing the cb cap was a pain, ask Lou how much fun it
is to do repairs inside the centerboard trunk.
  I'm thinking the best bet is to not anchor/moor in shallow water, don't
motor backward in shallow water, and NEVER EVER splash the boat unless the
cb pendant is cleated with the cb in the UP position. Any other ides on this
are more than welcome.

    Jerry

> I have changed the title of this exchange as it appear the topic has 
> morphed from the matter of the mast post base to the question of how 
> the centreboard is attached and how this might result in damage to the 
> cap if the centreboard is not held in the up position when launching.
>
> My centreboard pivot pin rides in two vertical channels in the housing 
> that are about 5" long. Those grooves are very clear in the second 
> photo that Rob Lowe just posted. As I saw it, the channels would allow 
> the pin to be dropped down to the proper position without the need to 
> insert the pin from the outside of the housing.  It now occurs to me  
> that this design might also have been intended to allow the pivot pin 
> to rise up inside the housing should the centreboard hit something. 
> Makes sense although perhaps not if this would allow the centreboard 
> to damage the cap.
>
> In my case two length of .5 inch rigid PVC  pipe were placed in each 
> channel above the pin. It appears that these pipes were intended to 
> prevent the pin from rising up. As I mentioned earlier, I was pretty 
> sure that the cap had never been removed and assumed, therefore, that 
> the pieces of pipe were part of the original design. Now I am 
> beginning to wonder if this was some kind of retrofit by a previous 
> owner who, perhaps, was responding to damage caused when the 
> centreboard was pushed into the cap.
>
> I am inclined to leave the pieces of pipe out when I reinstall the 
> centreboard or perhaps search for something that might act as a shock 
> absorber but still allow the board to raise up if it hits a solid object.
> Perhaps shorter lengths of flexible plastic tubing would work.
>
> Has anyone else found a similar arrangement in the pivot pin channel?
> Any thoughts?
>
> Graham
>
>
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Lowe, Rob
> Sent: March-06-14 3:13 PM
> To: The Rhodes 22 Email List
> Subject: Re: [Rhodes22-list] Searching the archives and settled step 
> >now mast step cb leak
>
> It seems like there are various versions of CB and the lift systems.  
> Here are some photos that someone (I forgot who, sorry!) posted of 
> their CB taken apart. - rob
>
> http://www.rhodes22.org/pipermail/rhodes22-list/attch/200507/14/Getawa
> y1.jpg 
> http://www.rhodes22.org/pipermail/rhodes22-list/attch/200507/14/Getawa
> y2.jpg
>
>
>
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Ric Stott
> Sent: Thursday, March 06, 2014 2:00 PM
> To: The Rhodes 22 Email List
> Subject: Re: [Rhodes22-list] Searching the archives and settled step 
> >now mast step cb leak
>
> Thanks Graham
> It might have been cracked when they loaded it onto a trailer to 
> launch last spring and delivered it to me.
> It was a transport trailer.
> Sam replied that the pendant had to be cleated when trailered, or it 
> would cause a crack.
> I'd like to understand the mechanics of that reply.
> Is the top or aft edge of the CB that close to the cap, and what 
> component would allow it to move vertically, a hinge pin?
> Is there a CB diagram anywhere?
> I think it was leaking, but very little until later in the season then
> - after a storm, it got much worse.
> The boat may have been on the bottom or bounced on the bottom at a 
> very low tide.
> I'll take it apart when it warms up.
> Pendant - Braided nylon is very stretchy - is that what we want?
> Ric
>
> On Mar 6, 2014, at 1:24 PM, Graham Stewart wrote:
>
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